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我国西北、华北、东北地区有着相当数量的沙丘、岗地,这些地区气候干燥、降雨量少,尤其是春秋两季,风沙大、旱相严重。在这种环境下的植树造林成活率,除与风沙干旱的自然环境有直接关系以外,还与造林方法、适地适树、造林工具等因素有关。对此,我国林业工人在同风沙干旱斗争的过程中,积累了丰富的造林经验,创造了多种植树造林的好方法。这里介绍的是内蒙古自治区通辽县第二机械化林场创造的一种在沙丘上开沟、植大苗(全株)不整地成活率高的成熟造林方法和适应这种方法造林机械的设计参数的选择,供营林机械工作者参考。一、深沟造林方法及其优点内蒙古通辽县第二机械林场,1976年使用开沟犁先在沙丘上开出一条宽近100厘米、深30厘米左右的沟,然后在其沟底人工挖出深20厘米以上的植树坑,将1～2年生、
In northwestern, northwestern and northeastern China, there are a considerable number of sand dunes and posts. These areas are characterized by dry climate and little rainfall, especially in spring and autumn. In this environment, the survival rate of tree planting and afforestation is directly related to the natural environment of wind-blown sand and drought, but also to factors such as afforestation method, suitable tree planting and afforestation tools. In response, our forestry workers have accumulated rich experiences in afforestation during the struggle against the wind and sand drought, and have created many good ways of afforestation. Here is a selection of mature afforestation methods that are created by the second mechanized forest farm in Tongliao County, Inner Mongolia Autonomous Region and have a good survival rate of ditching on the sand dunes and large seedlings (whole plant), and the selection of design parameters to adapt to this method. For the forest machinery workers for reference. First, the deep grove afforestation method and its advantages Inner Mongolia Tongliao County, the second mechanical forest farm, in 1976 the use of ditching plow first out in the sand dune a width of nearly 100 cm, about 30 cm deep trench, and then manually dug in the ditch Tree planting pit more than 20 cm deep, will be 1 to 2 years old,